Technically, the M1911 is a recoil operated, locked breech semi-auto pistol. It has a single action trigger with frame mounted safety that locks the hammer and the slide. The hammer can be locked either in cocked or in lowered position, allowing the gun to be carried in "cocked and locked" state, with safety on, hammer cocked and round chambered. Additional automated safety is incorporated into the rear of the grip and locks the action, when the gun is not properly held. The Colt M 1911 was manufactured by many companies in many countries, partly in the original form, partly modified, partly under license and partly without a license. It was exported to many countries after WW II, and it was in service with the US forces for 70 years.
